Home / 271,723,683.80-406,988,328.90-163,830,128.60

Finding the Fourth Proportional to 271,723,683.80, 406,988,328.90 and 163,830,128.60

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Solution

The fourth proportional to 271,723,683.80, 406,988,328.90 and 163,830,128.60 is: 245,385,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,723,683.80 : 406,988,328.90 = 163,830,128.60 : x
  2. Step 2: Convert to fraction form
    271,723,683.80/406,988,328.90 = 163,830,128.60/x
  3. Step 3: Cross multiply
    271,723,683.80x = 406,988,328.90 × 163,830,128.60
  4. Step 4: Simplify right side
    271,723,683.80x = 66,676,950,262,386,088
  5. Step 5: Solve for x
    x = 66,676,950,262,386,088/271,723,683.80
  6. Step 6: Final answer
    x = 245,385,125.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.